tidb v3.0.19 Release Notes

Release Date: 2020-09-25 // almost 2 years ago
  • ๐Ÿ‘Œ Improvements

    • ๐ŸŽ Mitigate the impact of failure recovery on QPS performance #19764
    • ๐Ÿ‘Œ Support adjusting the concurrency of the union operator #19885

    ๐Ÿ› Bug Fixes

    • ๐Ÿ›  Fix the query error that occurs when the slow-log file does not exist #20050
    • Add the privilege check for SHOW STATS_META and SHOW STATS_BUCKET #19759
    • Forbid changing the decimal type to the integer type #19681
    • ๐Ÿ›  Fix the issue that alter enum/set type does not check constraint #20045
    • ๐Ÿ›  Fix the bug that tidb-server does not release table locks after a panic #20021
    • ๐Ÿ›  Fix the bug that the OR operator is not handled correctly in the WHERE clause #19901